feat: add ENABLE_COMMUNITY_SHARING

backend/config.py

@@ -566,6 +566,12 @@ WEBHOOK_URL = PersistentConfig(
 
 ENABLE_ADMIN_EXPORT = os.environ.get("ENABLE_ADMIN_EXPORT", "True").lower() == "true"
 
+ENABLE_COMMUNITY_SHARING = PersistentConfig(
+    "ENABLE_COMMUNITY_SHARING",
+    "ui.enable_community_sharing",
+    os.environ.get("ENABLE_COMMUNITY_SHARING", "True").lower() == "true",
+)
+
 ####################################
 # WEBUI_SECRET_KEY
 ####################################